MAGNET FOR USE WITH A MAGNETIC IMAGE INTENSIFIER AND A FOLDED SCHMIDT SPECTROGRAPH CAMERA.

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Abstract

An ideal fast camera for imaging linear spectra is the folded Schmidt design used, for example, in the Wampler-Robinson scanner at Lick Observatory (Epps 1975). This design, which can be as fast as f/1. 0, involves a folding flat directly adjacent to the tube photocathode, and the incoming light would be blocked by the solenoid in any conventional magnet design. More complex solenoid geometries are explored which give the very open access to the cathode while maintaining high field uniformity, and a design is presented which is practical in terms of power dissipation and weight, and is also screened against external transverse fields. The design may also have application in any optical system that requires large elements and clearance near the image tube cathode.

Original languageEnglish (US)
Pages (from-to)377-379
Number of pages3
JournalProceedings of the Society of Photo-Optical Instrumentation Engineers
Volume172
StatePublished - 1979

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Spectrographs
Magnets
Cameras
Solenoids
Cathodes
Image storage tubes
Photocathodes
Observatories
Optical systems
Energy dissipation
Imaging techniques
Geometry

ASJC Scopus subject areas

  • Engineering(all)

Cite this

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title = "MAGNET FOR USE WITH A MAGNETIC IMAGE INTENSIFIER AND A FOLDED SCHMIDT SPECTROGRAPH CAMERA.",
abstract = "An ideal fast camera for imaging linear spectra is the folded Schmidt design used, for example, in the Wampler-Robinson scanner at Lick Observatory (Epps 1975). This design, which can be as fast as f/1. 0, involves a folding flat directly adjacent to the tube photocathode, and the incoming light would be blocked by the solenoid in any conventional magnet design. More complex solenoid geometries are explored which give the very open access to the cathode while maintaining high field uniformity, and a design is presented which is practical in terms of power dissipation and weight, and is also screened against external transverse fields. The design may also have application in any optical system that requires large elements and clearance near the image tube cathode.",
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journal = "Proceedings of the Society of Photo-Optical Instrumentation Engineers",
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